Valve



(No Model.)

G. T. WILSON.

' VALVE.

N0.364,562. P atentedJuneL1887.

UNITED STATES PATENT OFFICE;

GEORGE 'r. WILSON,'OF nos ron, ASSIGNOR or ONE-HALF TO nnsrn, or sALEM, MASSACHUSETTS.

JULIAN VALVE.

SPECIFICATION forming part of Letters Patent No. 364,562, dated June 7, 1887.

Application filcdNovomberB ,15SG. Serial No. 218.202. (No model.)

To all whom it may concern.-

Be it known that I, GEORGE T. WILSON, of Boston, in the county of Suffolk and State of Massachusetts, have invented certain new and useful Improvements in Valves for Flushing Water-Closets, &c., of which the following is a specification.

My invention has reference especially to the regulation of the rate at which the valve 15 closed to cause. a gradual closing of the valve and to avoid sudden shocks. The valve is formed of a hollow rubber ball placed over the mouth of the discharge-pipe so that a portion of the convex surface of the ball, forming the valve proper, may rest upon and close the mouth of the discharge-pipe, and maybe removed therefrom to open the valve by draw ing the valve portion of the ball back into the cavity of the ball. To the cavity of the ball water is admitted when the valve is closing,

- the rate of closing being regulated by the size of the opening in the ball which admits the water.

My invention further has reference to an overflow-pipe having an inverted-Ushaped branch, through which pipe and branch air is admitted to the discharge-pipe and any overflow of the cistern carried off. whereby avalve may be placed in direct line with the overflowpipe and a valve-lifting rod may pass through such overflow-pipe that the valve, valve-lifting rod, and overflow-pipe may be united in a single compact device in which a tube standing within the overflow-pipe serves as a guide to the lifting-rod, the lifting-rod, when operated, raising the valve, and the valve only, and thus lessen any noise or friction incident to the lifting and returning or falling back to place of the valve; and whereby, further, my hollow rubber ball-valve may rest upon its seat in the mouth of the discharge-pipe within, and when operated by the lifting-rod be supported by the inverted U shaped branch.

In the drawings, Figure 1 shows a sectional elevation of a device and connecting parts embodying my invention, the hollow rubber ballvalve upon its seat closing the mouth of the discharge-pipe. Fig. 2 shows a sectional elevation of my device, the cutting-plane being on the line a: x of Fig. 1, the hollow rubber ball-valve raised from its seat, and the mouth of the discharge-pipe open. Fig. 3 sl1ows a partial elevation of my device, showing within the inverted-U-shaped branch a valve which drops upon its seat to close the mouth of the discharge-pipe, the valve upon its seat, and the mouth of the discharge-pipe closed. Fig. 4 shows in sectional elevation a supplemental valve in place in the water-passage opening of the ball to allow the comparatively slow spreading of the ball to close the mouth of the discharge-pipe.

G is the cistern; W, water in the cistern.

0 is theoverilow-pipe, having the inverted- U-shaped branch U U, which dischargesinto the discharge-pipe P below the hollow rubber ball-valve B, (below the valve V in Fig. 3.)

The branch U U and. valve-seat Tare cast in one piece, and 'are connected with the discharge-pipe P and overflow-pipe O, as shown in the drawings, the valve-seat T serving as the mouth of the discharge-pipe 1?. S isa tube which stands within the overflowpipe, as shown, preventing connection between the water of the cistern and the overflow-pipe O and branch U U, except through the mouth of the overflow-pipe.

L is the valve-lifting rod, connected at I with means to operate it. This valve-lifting rod L passes through the tube S, through the branch UUat G, and through the hollow rubber ball B, and is screwed into the screw K. The screw K passes through the base of the ball B and carriesthe plate M, beneath which is the nut N, by means of which-said screw is secured and the base of the ball held tightly between said plate and the head of said screw.

The valve operates as follows: Vhen thelifting-rod L is raised,the lower part of the hollow rubber ball-thc valve proper-is raised by being doubled into the cavity of the ball, expelling the water therefrom through the water-passage opening E of the ball,and opening the mouth of the discharge-pipe through which water flows to the water-closet, &c., to be flushed; andwhen the lifting-rod is released the elasticity of the ball restores the ball to its original spherical shape gradually and at a rate dependent upon the size of the waterpassage opening E, through which water flows 10o into the cavity of the ball until its lower surface rests upon and closes the mouth of the dischargepipe, shutting oil the flow of water to the water-closet, &e.

The water-passage E and the opening in the ball B, through which the lifting-rod passes from the tube S,are protected by the studs cand D, which have hollow shanks and are kept in place by their disks-one disk within and the other without the ball B. The studs 0 and D and the screw K are put in place by stretching the ball B, and thereby enlarging for the moment the openings made in the ballto receive said studs and screw, into which openings the studs and screw are buttoned.

The valve V (shown in Fig. 3) is secured to the valve-lifting rod by the thread on the rod, which screws into a thread in the valve, as shown.

If it is desired to raise the hollow rubber ball-valve with the greatest possible ease, and at the same time to have this valve return to its seat comparatively more slowly, a supplemental valve, Q, may be used, Fig. 4, by means of which water is admitted into the ball B by an opening smaller than that through which it is expelled, by reason that the water expelled from the ball forces the valve Q outward and passes through the hollow shank of the stud (1 around the valve Q. as well as also through the small hollow shank of the valve Q; and the spring 1, carried on the shank of the valve Q, bringing the valve Q, back upon its seat and closing the hollow shank of the stud 6, allows the water to flow into the cavity of the ball only through the small opening in the shank of the valve Q.

I claim-- 1. The hollow elastic valve B, having an opening for the admission of water to the cavity of the valve to control the rate at which the valve shall close, the weight and pressure of the entering water on the internal walls of the valve, the valve when in operation being wholly immersed in water, as described, gradually overcoming the water-pressure on the external walls of the valve, thus enabling the valve to expand by its own elasticity and close the mouth of the discharge-pipe, said valve being provided with the valve-lifting rod L, provided with means to operate it, which passes through the hollow of the valve and has its lower end fastened to the bottom of the.

valve, whereby the bottom of the valve may be drawn up into the cavity of the Valve and the mouth of the discharge-pipe opened, substantially as described.

2. In adevice for flushing water-elosets,&e., and for carrying off the overflow from the cistern, an overflow-pipe having an inverted-U- shaped branch which opens into the dischargepipe, said overflow-pipe being provided with a tube standing therein, within which tube a valve-lifting rod operates to raise the valve from its seat without raising the overflow-pipe, substantially as described.

GEORGE T. \VILSON.

\Vitnesses:

FRANK. F. A. SCHILLER, \VALDRoN BATES. 

